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Finding the Fourth Proportional to 11,163.56, 15,410.04 and 8,377.16

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Solution

The fourth proportional to 11,163.56, 15,410.04 and 8,377.16 is: 11,563.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.56 : 15,410.04 = 8,377.16 : x
  2. Step 2: Convert to fraction form
    11,163.56/15,410.04 = 8,377.16/x
  3. Step 3: Cross multiply
    11,163.56x = 15,410.04 × 8,377.16
  4. Step 4: Simplify right side
    11,163.56x = 129,092,370.69
  5. Step 5: Solve for x
    x = 129,092,370.69/11,163.56
  6. Step 6: Final answer
    x = 11,563.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.